The Portable Fluid Management Device is a designed to dispense precise quantities of liquid with minimal manual intervention. By Joseph George.

If you've ever wondered about the planes flying overhead, you can always listen to ADS-B transmissions to learn more about them. built a rig to do that, and it comes in under $50 in parts. The build is based on the Meshnology W12 board, which combines an ESP32-S3 microcontroller with an LR2021 LoRa radio. The latter is capable of being tuned into transmissions in the 1090 MHz range and it can capture ADS-B traffic that uses OOK and Manchester coding.

If you've ever wondered about the planes flying overhead, you can always listen to ADS-B transmissions to learn more about them. built a rig to do that, and it comes in under $50 in parts. The build is based on the Meshnology W12 board, which combines an ESP32-S3 microcontroller with an LR2021 LoRa radio. The latter is capable of being tuned into transmissions in the 1090 MHz range and it can capture ADS-B traffic that uses OOK and Manchester coding.

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Do you want a hobby operating system with a desktop for a microcontroller-based computer? Sylphide OS is a new project aiming to build just that. For the last few weeks,...

Do you want a hobby operating system with a desktop for a microcontroller-based computer? Sylphide OS is a new project aiming to build just that. For the last few weeks, I’ve worked on a new pet project: an operating system for computers based on microcontrollers. There aren’t many yet, but I expect them to be more and more common. Why MCU computers ? You get a relatively very simple platform, booting straight to your code (or almost), and you can understand the whole architecture. Exactly as it was with home computers long ago. And not at all what you get with modern computers. Even booting involves lot of very different systems, black magic, and even blog/proprietary software. ↫ Thomas Capricelli It’s very early in development, but by building it atop FreeRTOS, Capricelli had a head-start. It’s got a basic desktop, one that might need some changes to avoid the lawyers. The code’s open source, of course.

Back in September, we posted about OrcSDR, open-source firmware that runs an RTL-SDR directly on the ESP32-P4 microcontroller-based M5Stack Tab5 tablet, with no PC or Raspberry Pi needed. Erik Elfstrom has now written in again to share that OrcSDR v0.5.0-beta.1 (release notes) is out, with several new features and a lot of stability work. The […]

The Espressif ESP-Mosaico is an expandable smart-interaction development kit based on the ESP32-S31 microcontroller. The compact device integrates a 2.16-inch square touch display, audio hardware, motion and magnetic sensors, NAND storage, haptic feedback and dual expansion interfaces for HMI, edge voice and multimedia applications. The ESP32-S31NRV16 at the center of the board provides two…

The Espressif ESP-Mosaico is an expandable smart-interaction development kit based on the ESP32-S31 microcontroller. The compact device integrates a 2.16-inch square touch display, audio hardware …

The Espressif ESP-Mosaico is an expandable smart-interaction development kit based on the ESP32-S31 microcontroller. The compact device integrates a 2.16-inch square touch display, audio hardware, motion and magnetic sensors, NAND storage, haptic feedback and dual expansion interfaces for HMI, edge voice and multimedia applications. The ESP32-S31NRV16 at the center of the board provides two 32-bit […]

Pico.Lab is an open-source embedded bring-up tool built around the Raspberry Pi RP2350 microcontroller. It offers an easy-to-use, window-based web user interface directly served from on-device flash o...

Powering the BeagleConnect QuadESC motor-control board, the BeagleConnect Torque is an open-source controller module developed by BeagleBoard.org for robotics, industrial control, and connected sensing applications. Based on Texas Instruments’ AM13E23019 microcontroller, it features a 200 MHz Arm Cortex-M33 processor, CAN FD connectivity, and expansion interfaces for custom embedded systems. Measuring just 25.4 × 38.1 mm […]

Most linear regulators hide a precise analog loop inside: a reference, an error amplifier, and a pass transistor. This project replaces the reference and error amplifier with a $5 microcontroller. A S...

A teardown of the Gorenje Diehl Controls NGPS10 C/1 washing-machine module reveals a microcontroller-based controller rather than a mechanical programme timer. The double-sided board combines an RL78/G13 MCU, LinkSwitch-TN power supply, HC595 shift registers, ULN2003A drivers and logic-triggered triacs with relays and an Alps rotary encoder. The Renesas R5F100FE RL78/G13 is a 44-pin MCU with 64 KB programme Flash, 4 KB data Flash and 4 KB RAM, running up to 32 MHz. The wiring harness includes a DA077 door lock, 0–3000 Pa Metalflex ST-545 analogue pressure sensor, HD505 mechanical pressure switch, EMI filter and dual solenoid valve. An unidentified chip marked “1MT 1083” remains unresolved; dated sensor and module labels place the appliance’s components in February–March 2014. Full article on the elektroda homepage.